Key wrench



FIG. 1 is a perspective view of the key wrench showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The engagement ends of the wrench shown in broken lines in FIGS. 1˜7 are for the purposes of illustration only and form no part of the claimed design. 

CLAIM I claim the ornamental design for a key wrench, as shown and described. 